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Spring + Hibernate,将autoFactory sessionFactory转换为休眠DAO

hibernate

我有一个 Hibernate的DAO ,在根据 Hibernate的API 3春天3.x中
,我用一个简单的sessionFactoryNOTHibernateDaoSupport+
getHibernateTemplate()-我希望这是一个不错的选择-

现在,我的 目标是sessionFactory使用注释将其自动连接到我的DAO中。

在我spring.xml我有这个:

<context:component-scan base-package="data" />

在数据包内部,我拥有所有的DAO和Service类。

这很简单HibernateDao

@Repository
public class PersonHDAO implements PersonDAO {

 private SessionFactory sessionFactory;

 @Autowired
 public void setSessionFactory(SessionFactory sessionFactory) {
     this.sessionFactory = sessionFactory;
 }

 public List<Person> findAll(){
  return sessionFactory.getCurrentSession().createQuery("bla bla").list();
 }
}

spring.xml加载期间我没有错误,但sessionFactory仍然是null

我该怎么办?

编辑

这是我的sessionFactory声明spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation=
       "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <!-- <property name="driverClassName" value="org.h2.Driver" /> -->
        <property name="url" value="my/db/url" />
        <property name="username" value="myUsername" />
        <property name="password" value="myPassword" />
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="data" />
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
                <prop key="hibernate.current_session_context_class">thread</prop>
                <prop key="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
    </bean>

    <context:component-scan base-package="data" />

    <tx:annotation-driven/>

    <bean id="transactionManager"  class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

EDIT2 现在sessionFactory不为空,但是我还有另一种例外:

org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [data.PersonHDAO] is defined: expected single bean but found 0:

也许意味着找不到PersonHDAO豆?

谢谢大家


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2020-06-20

共1个答案

小编典典

您是否声明了sessionFactory bean?

<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation">
<value>file:src/hibernate.cfg.xml</value>
</property>
</bean>
2020-06-20